CRS328-4C-20S-4S+RM

The CRS328-4C-20S-4S+RM is a 28 independent port switch with a combo group. This device has twenty SFP ports, four SFP+ ports for 10G modules and four combo ports, where you can choose to use SFP or RJ45 ports from the combo group. These ports can also be software selected, so if you have plugged in all eight cables, you can use scripting, to decide which four combo ports will be active.

The device comes in a 1U rackmount case with two 100-240 V power supplies with failover functionality. A RJ45 console port is available for management and debugging, and a mode button can be customised to execute any RouterOS commands.

The device has a “Dual boot” feature that allows you to choose between two operating systems – RouterOS or SwOS.

SKU: CRS328-4C-20S-4S+RM Category: Router&Switch Tag: Mikrotik

Description
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Description

Specifications

Details
Product code	CRS328-4C-20S-4S+RM
Architecture	ARM 32bit
CPU	98DX3236
CPU core count	1
CPU nominal frequency	800 MHz
Switch chip model	98DX3236
Dimensions	443 x 194 x 44 mm
RouterOS license	5
Operating System	RouterOS / SwitchOS
Size of RAM	512 MB
Storage size	16 MB
Storage type	FLASH
MTBF	Approximately 200’000 hours at 25C
Tested ambient temperature	-20°C to 60°C

Powering

Details
Number of AC inputs	2
AC input range	100-240
Max power consumption	43 W
Cooling type	2 fans

Ethernet

Details
Ethernet Combo ports	4

Fiber

Details
SFP ports	20
SFP+ ports	4

Peripherals

Details
Serial console port	RJ45

Other

Details
CPU temperature monitor	Yes
Voltage Monitor	Yes
Mode button	Yes

Certification & Approvals

Details
Certification	CE, EAC, ROHS

Switching results

CRS328-4C-20S-4S+RM
Mode	Configuration	1518 byte		512 byte		64 byte
Mode	Configuration	kpps	Mbps	kpps	Mbps	kpps	Mbps
Switching	Non blocking Layer 2 throughput	5,201.6	63,167.8	15,037.6	61,594.0	95,238.1	48,761.9
Switching	Non blocking Layer 2 capacity	5,201.6	126,335.5	15,037.6	123,188.0	95,238.1	97,523.8
Switching	Non blocking Layer 1 throughput	5,201.6	64,000.0	15,037.6	64,000.0	95,238.1	64,000.0
Switching	Non blocking Layer 1 capacity	5,201.6	128,000.0	15,037.6	128,000.0	95,238.1	128,000.0

Ethernet test results

CRS328-4C-20S-4S+RM		98DX3236 all port test
Mode	Configuration	1518 byte		512 byte		64 byte
Mode	Configuration	kpps	Mbps	kpps	Mbps	kpps	Mbps
Bridging	none (fast path)	104,3	1266.6	273,5	1120.3	449	229.9
Bridging	25 bridge filter rules	104	1263.0	104,6	428.4	104,5	53.5
Routing	none (fast path)	104,3	1266.6	273,9	1121.9	343,5	175.9
Routing	25 simple queues	104,3	1266.6	136,9	560.7	137,4	70.3
Routing	25 ip filter rules	64,8	786.9	65,9	269.9	65,8	33.7

All tests are done with Xena Networks specialized test equipment (XenaBay),and done according to RFC2544 (Xena2544)
Max throughput is determined with 30+ second attempts with 0,1% packet loss tolerance in 64, 512, 1518 byte packet sizes
Test results show device maximum performance, and are reached using mentioned hardware and software configuration, different configurations most likely will result in lower results

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